package cn.wolfcode._IOday01_.work03;

import java.io.File;
import java.io.FileInputStream;
import java.io.IOException;

public class Count {
    public static void main(String[] args) throws IOException {
        File file = new File("javatest.txt");
        FileInputStream inputStream = new FileInputStream(file);
        byte[] b = new byte[1] ;
        int off = 0 ;
        int len ;
        while((len = inputStream.read(b)) != -1){

        }
    }
}
